Honda - CB 350 K0 68

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Bike Info

CC:
350
Bike Description:
This model K0 (or K1 for France) starts from the series No. 1 000 001. This model received technical changes of detail to ensure a greater dependability. Starting from serial number 1 042 395, a change is made on the gearbox to improve its durability and its silence of operation. The countershaft receives a lock washer and another support between the second and third gears gears. Starting from serial number 1 034 797, the CB 350 enjoys a modification of the stop on the kick starter shaft. This stop is more reported but comes directly machining with the shaft to improve its strength. This new axis of kick-starter can replace the old without any other modifications. Still on this subject, the CB 350 model from the serial number 1 034 914 has a pinion of kick-starter of a reduced thickness of 1 mm to avoid an overlap with the 1st gear when you maneuver the back motor machine running and 1st gear engaged. Starting from serial number 1 041 598, hydraulic timing chain tensioner pusher is cast iron instead of hearth light alloy so that the two pieces are mutually scratch. In addition, the inside diameter is smaller (instead of 14.5 mm 10.5), reducing the volume of oil, in order to accelerate the air bleed. The bleed screw has a calibrated instead of a standard hex screws nozzle. Starting from the No. 1 044 308, modification of oil purifier cover. Due to a possible lack of lubrication of the camshaft, the Central gasket from the lid could be questioned. To avoid its seizure in the lid, this ring slightly decreased in diameter and presented a décolletage in his head. On the ancient ring, the passage of Emery cloth is sufficient to slightly reduce its diameter to improve his sliding. Starting from serial number 1 027 564, modification of the Starter relay as a result of defects in operation due to vibration. The CB 350 from the serial number 045 1,165 until no. 1 065 278 receive a change of Carburetors. The height of the float in the tank passes of 19 to 21 mm. From the No. 1 065 279, the float is round, again changing its height in the tank that goes from 21 to 26 mm. Starting from serial number 1 079 079, replacement of the hydraulic tensioner in the distribution chain by a mechanical tensioner that can be mounted on the earlier machines without modifications. Change mechanism of kick-starter from the 1 Series No. 130 828. Translated from french, some mistakes may appear, sorry. Patrick
Chassis info:
tubular steel elements welded
CB 350 K0 Parts and accessories

Service

Engine Oil Grade SAE:
10-40
Engine Oil quantity (litres):
2L
Fork oil grade:
10-30
Front Fork Oil cc (left leg):
200ml
Front Fork Oil cc (right leg):
200ml
Spark Plugs Gap (mm):
0.6-0.7mm
Tyre Pressure Back Bar / psi:
2.0 Kg/cm²
Tyre Pressure Front Bar / psi:
1.8 kg/cm²
Valve Clearance Cold - Exhaust:
0.10mm
Valve Clearance Cold - Inlet:
0.05mm

Brakes

Front:
Drum
Rear:
Drum
Front Drum Size:
181
Rear Drum Size:
161

Dimensions

Dry Weight:
160
Fuel Capacity:
11
Ground Clearance:
150
Height:
1075
Length:
2040
Reserve Fuel Capacity:
2
Seat Height:
820
Wheelbase:
1320
Width:
775

Electrics

Voltage:
12v
Battery:
Yuasa 12 N 12 A – 4 A
Bulb-Headlight:
35/25 W
Charging System:
Dynamo 100w
Ignition:
battery / coil
Ignition Timing:
180°
Main Fuse:
15A
Spark Plugs:
long Ø 14 mm NGK B - 8 ES

Engine

Type:
Air Cooled 4 Stroke SOHC Straight Twin
Air Filtration:
Paper
Bore x Stroke:
64 x 50,6
Carburation:
gasoline
Carburation Idle Jet:
35
Carburation Main Jet:
65 – 75
Compression Ratio:
9,5 : 1
Displacement:
180°
Fuel Minimum Octane Rating:
91 RON
Lubrication System:
Under pressure by piston pump
No. of Valves:
4
Pilot Screw Setting:
¾ + 1/8 t
Red line RPM:
10500
Starting:
Electric starter & Kick
Valve Train:
Chain driven overhead camshaft

Transmission

Clutch Type:
Wet 8 plates
Final Drive:
Chain
Gearchange Pattern:
N12345
Gear Ratio 1st:
2,353
Gear Ratio 2nd:
1,636
Gear Ratio 3rd:
1,269
Gear Ratio 4th:
1,036
Gear Ratio 5th:
0,900
Sprocket front:
16
Sprocket rear:
36
Transmission:
5 speed

Misc.

Motorcycle Style:
Roadster
Place of Manufacture:
Japan

Power

Max Torque:
2,55 / 9500
Top Speed:
160 km/h

Suspension

Front:
Telescopic fork 116 mm
Rear:
Dual shocks 65 mm

Tyres

Front:
3.00 – 18 Tube
Rear:
3.50 – 18 Tube